Question

Heat conduction is a function of material property, temperature difference and fluid the geometry of the object. a) True b) False

Answer 1

a)True

Step-by-step explanation:

According to Fourier's law,It states that Heat transfer is directly proportionate to the temperature gradient.For unidirectional conduction

`q''\alpha(dT)/(dx)`

Where q'' is the heat flux.

When This directly proportionate is remove then one constant will on that place and that constant is called conductivity of material.

`q''=K(dT)/(dx)`

So total heat transfer Q

`Q=KA(dT)/(dx)`

When conductivity (K) of material is not constant

K=
`K_0`(a+bT) where a,b are constant.

So from the above expression we can say that heat transfer in material will depend on temperature difference,material property and on on geometry of object.